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Buena Vista County, Iowa

Natural disaster risk, federal disaster history and flood insurance facts.

Very Low overall risk
41st of 99highest risk in Iowa
$12Mexpected losses a year
20federal declarations
1 in 1000homes with flood insurance
Photo: U.S. Geological Survey, public domain

Buena Vista County, Iowa has a very low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is lower than 61% of US counties. It ranks 41st of 99 counties in Iowa. The costliest hazards here are inland flooding, tornadoes and hail. FEMA estimates about $12 million a year in expected losses, or roughly $577 per resident. Since 1965 it has been included in 20 federal disaster or emergency declarations for natural events (18 major disasters). The most recent was in June 2024 (severe storms, flooding, straight-line winds and tornadoes). Only 11 homes here carry federal flood insurance.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Buena Vista County

$3.7 million a yearExpected losses. Damaging events about 2 times a year.
  • Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
  • Price a flood policy now. Most new federal policies take 30 days to start.

Tornado

Moderate
$2.9 million a yearExpected losses. Damaging events about once every 2 years.
  • Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
  • Turn on emergency alerts on your phone and keep a weather radio.

Hail

Moderate
$2 million a yearExpected losses. Damaging events about 5 times a year.
  • Ask about the roof age and any impact-rated shingles.
  • Check your home policy for a separate wind and hail deductible.
HazardRatingScoreExpected loss a year
Inland floodingVery Low32.9
$4M
TornadoModerate74.0
$3M
HailModerate91.9
$2M
Cold waveLow61.7
$1M
Strong windModerate62.6
$771K
DroughtModerate74.6
$671K
Winter weatherModerate76.9
$178K
Heat waveVery Low26.3
$105K
Ice stormLow50.2
$84K
LightningVery Low19.2
$65K
EarthquakeVery Low19.4
$26K
WildfireVery Low17.9
$6K
LandslideVery Low40.5
$672

Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is relatively moderate and community resilience is relatively moderate in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Buena Vista County. 2020s bar runs to November 2026.

By type

Severe Storm10
Flood7
Severe Ice Storm1
Hurricane1
Snowstorm1

Most recent

Jun 24, 2024Severe Storms, Flooding, Straight-Line Winds, and TornadoesMajor disaster
May 24, 2024Severe Storms, Tornadoes, and FloodingMajor disaster
Feb 23, 2022Severe Storms, Straight-Line Winds, and TornadoesMajor disaster
Mar 23, 2019Severe Storms and FloodingMajor disaster
Aug 20, 2018Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Jul 24, 2014Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Jul 2, 2013Severe Storms, Tornadoes, and FloodingMajor disaster
May 5, 2011Severe Storms, Tornadoes, and Straight-Line WindsMajor disaster
Jul 29, 2010Severe Storms, Flooding, and TornadoesMajor disaster
Mar 2, 2010Severe Winter StormMajor disaster
Show all 20
Feb 25, 2010Severe Winter Storms and SnowstormMajor disaster
Mar 30, 2007SnowEmergency
Sep 10, 2005Hurricane Katrina EvacuationEmergency
May 25, 2004Severe Storms, Tornadoes, and FloodingMajor disaster
Jul 2, 1998Severe Storms, Tornadoes and FloodingMajor disaster
Jul 9, 1993Severe Storms & FloodingMajor disaster
Dec 26, 1991Ice StormMajor disaster
Aug 14, 1969Heavy Rains & FloodingMajor disaster
Apr 25, 1969FloodingMajor disaster
Apr 22, 1965FloodingMajor disaster

Iowa also had 11 statewide declarations that did not name single counties.

Storm history since 1957

Tornado risk by county ›

The National Weather Service has logged 389 storm reports in Buena Vista County since 1957, with 0 deaths and 8 injuries and about $15.3 million in reported damage. The strongest on record here was an F2 tornado on June 7, 1984.

29tornadoes
154hail reports, largest 3 inches
135damaging thunderstorm winds
65floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Jun 7, 1984F2–3 / 0
Apr 9, 2011EF2Newell0 / 0
Aug 8, 1969F2–0 / 0
Dec 15, 2021EF2Rembrandt0 / 0
Apr 9, 2011EF2Newell0 / 0

Most damaging storms

DateTypeNearDamage
Jun 7, 1984Tornado–$3M
Jun 21, 2024FloodHanover$2M
Mar 13, 2019FloodHanover$2M
Jun 1, 2019FloodHanover$1M
Oct 4, 2013TornadoHanover$1M
Apr 9, 2011TornadoNewell$1M

Source: NOAA Storm Events Database, county-based reports through Jun 17, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.

Flood insurance in Buena Vista County

Check your address flood zone ›
0.1%of homes have federal flood insurance (11 policies)
0%of homes in mapped high-risk flood zones are insured
$0paid on 1 flood claims since 1978
1979costliest year

National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.

Homes in Buena Vista County

$159,500median home value (Iowa $208,000, US $332,700)
1964median year homes were built (Iowa 1972, US 1980)
74%of homes built before 1980, before many modern wind, quake and flood building rules
2.3%of homes are mobile homes, which are the least safe in tornadoes and high winds

Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 8,293 housing units.

Compare in Iowa

All 99 ›
Largest countiesOverall riskTop hazard
Polk CountyModerateInland flooding
Linn CountyModerateInland flooding
Scott CountyModerateInland flooding
Johnson CountyModerateTornado
Black Hawk CountyLowInland flooding
Woodbury CountyModerateInland flooding
Dallas CountyLowInland flooding
Dubuque CountyLowInland flooding

Neighboring counties

CountyOverall riskDeclarations
Clay CountyVery Low19
O'Brien CountyVery Low13
Cherokee CountyVery Low21
Calhoun CountyLow16
Sac CountyVery Low17
Palo Alto CountyVery Low21
Pocahontas CountyVery Low20
Ida CountyVery Low18

Common questions about Buena Vista County

What is the biggest natural hazard in Buena Vista County?

Inland flooding has the highest expected yearly losses in Buena Vista County, about $3.7 million a year in FEMA's estimate. Tornado is second at $2.9 million.

How many federal disasters has Buena Vista County had?

Buena Vista County has been included in 20 federal disaster or emergency declarations for natural events since 1965, including 18 major disasters. The most recent was Severe Storms, Flooding, Straight-Line Winds, and Tornadoes in June 2024.

Is Buena Vista County a high-risk place to live?

Its overall rating is Very Low, 41st highest of 99 in Iowa. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.

Do I need flood insurance in Buena Vista County?

Standard home insurance does not cover flooding. About 1 in 1000 homes in Buena Vista County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.

How many tornadoes has Buena Vista County had?

NOAA records list 29 tornadoes in Buena Vista County since 1950. The strongest was an F2 tornado on June 7, 1984. The weather service has also logged 154 hail reports and 65 floods here.

Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.